John, I understand, now. The "normal" Baker mechanism for cocking is a relatively single straight rod through the lump into the bar. For want of a better term I always called it a cocking rod. The Batavia Ejector Models I have seen have a single hook from the lump to the bar, very similar to the 1909 Paragon Model. I think they cock like the Baker Standard. The Baker Standard cocks with a "Push Rod" on either side of the bar, actuated by a notch in the forend . This gun has extractors. There is another Model called the Baker Ejector [not Batavia" but I don't know how the mechanism works. And still another boxlock model called the Holland has been seen, but I don't have one and cannot explain the mechanism.